Lot of five Mexico City, Mexico, cob 4 reales, Philip IV, assayer P (where visible).S-M19; KM-38.64.23 grams total.Nice detailed group with light seawater exposure, some quite interesting with two irregularly shaped pieces and another one showing a full denomination 4, all darkly toned.From: Concepcion, sunk in 1641 off Hispaniola
($500-750)